A blowout preventer (BOP) is a critical safety device used in the oil and gas industry to prevent uncontrolled releases of crude oil or natural gas from a well. It is installed on the wellhead and can seal the well in case of a pressure surge, known as a blowout. BOPs are designed to withstand high pressures and are equipped with various mechanisms to control the flow of fluids. These devices are essential during drilling operations, especially in deepwater drilling, where the risks are higher. A BOP can be activated remotely or manually, ensuring that operators can quickly respond to emergencies. Proper maintenance and testing of blowout preventers are crucial for the safety of drilling operations and the protection of the environment.